Simultaneous photocatalytic tetracycline oxidation and chromate reduction via a jointed synchronous pathway upon Z-scheme Bi₁₂O₁₇Cl₂/AgBr: insight into intermediates and mechanism

Abstract

A 2D/0D Bi12O17Cl2/AgBr Z-scheme photocatalyst provides a jointed synchronous pathway for simultaneous Cr(vi) and TC removal.

Simultaneous removal of Cr(vi) and TC over BiO1−XBr/CeVO4 S-scheme heterostructures: oxygen vacancy boosted charge separation and analysis of intermediates

“…Of interest, due to the presence of Cr(VI) in the mixed pollutant system, its strong oxidation contributed to the appearance of the photocatalytic TC ring-opening reaction. 60 The final product changed into polycarboxylic acid, CO 2 and H 2 O under the action of ˙O2 − , ˙OH, h + and Cr(VI). Photoluminescence (PL) spectroscopy was applied to illustrate the separation efficiency of photogenerated electrons and holes.…”

Preparation of Fe3O4@CA/BNNS/AgNP Magnetic Microspheres and Photocatalysis of Dyes

“…Therefore, wastewater treatment has attracted widespread attention. − Extensive research has been conducted on the elimination of organic dyes from wastewater, including photocatalysis, redox degradation, microbial methods, and physical adsorption. , Compared with the other methods mentioned above, photocatalysis has the advantage of high efficiency. In recent years, photocatalytic research has gradually attracted great interest from researchers. − Different types of semiconductors can be used as photocatalysts for the pollutant degradation, , CO 2 reduction, , and water decomposition . However, single-phase photocatalysts exhibit a poor quantum efficiency.…”

In Situ Growth of Z-Scheme Co/Al-LDH@Co3O4@Co-F Heterojunctions with Interfacial Enhancement and Synergistic Effects on a Cobalt Foam Surface for Environmental Remediation Studies

“…To solve the above problems, many strategies have been explored to inhibit the recombination of photocatalytic carriers, such as metal/nonmetal doping, surface defect modification, morphology control, crystal surface engineering, and heterogeneous structure construction. To date, the construction of heterojunctions (type I, type II, and Z schemes) can significantly promote the separation and transport of carrier and is considered as an effective method to inhibit carrier recombination. , Recently, heterojunction catalysts based on bimetallic hydroxides (LDH, such as Co/AL-LDH, Co/Ca-LDH, and Mg/Al-LDH) and metal oxides (Co 3 O 4 , CuO, and CuBi 2 O 4 ) have been widely reported because of their large surface area, wide photoresponse, and good electrical conductivity. − Although the above photocatalysts have exhibited relatively high catalytic performance, the long recovery cycle and complex process make those catalysts difficult to use in the actual environment . Therefore, it is necessary to develop new photocatalytic materials with good recyclable properties, ultrahigh stability, and significant catalytic performance. , …”

“…To date, the construction of heterojunctions (type I, type II, and Z schemes) can significantly promote the separation and transport of carrier and is considered as an effective method to inhibit carrier recombination. 10,11 Recently, heterojunction catalysts based on bimetallic hydroxides (LDH, such as Co/AL-LDH, Co/Ca-LDH, and Mg/Al-LDH) and metal oxides (Co 3 O 4 , CuO, and CuBi 2 O 4 ) have been widely reported because of their large surface area, wide photoresponse, and good electrical conductivity. 12−14 Although the above photocatalysts have exhibited relatively high catalytic performance, the long recovery cycle and complex process make those catalysts difficult to use in the actual environment.…”